<rdf:RDF xmlns:rdf="http://www.openarchives.org/OAI/2.0/rdf/" xmlns:ow="http://www.ontoweb.org/ontology/1#" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:ds="http://dspace.org/ds/elements/1.1/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:doc="http://www.lyncode.com/xoai" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/rdf/ http://www.openarchives.org/OAI/2.0/rdf.xsd">
   <ow:Publication rdf:about="oai:digibug.ugr.es:10481/69680">
      <dc:title>Comparative Study of Energy Savings for Various Control Strategies in the Tunnel Lighting System</dc:title>
      <dc:creator>Qin, Li</dc:creator>
      <dc:creator>Peña García, Antonio Manuel</dc:creator>
      <dc:creator>Leon, Arturo S.</dc:creator>
      <dc:creator>Yu, Jian-Cheng</dc:creator>
      <dc:subject>Lighting control system</dc:subject>
      <dc:subject>Energy savings</dc:subject>
      <dc:subject>Control strategies</dc:subject>
      <dc:subject>LED lighting</dc:subject>
      <dc:description>Tunnel lighting is the most significant component in total energy consumption in the&#xd;
whole infrastructure. Hence, various lighting control strategies based on light-emitting diode (LED)&#xd;
technology have been investigated to conserve energy by decreasing luminaires’ operating time. In&#xd;
this study, four kinds of tunnel lighting control strategies and the development of their associated&#xd;
technologies are evaluated: no-control low-consumption lamps (LCL), time-scheduling control&#xd;
strategy (TSCS), daylight adaptation control strategy (DACS), and intelligent control strategy (ICS).&#xd;
This work investigates the relationship between initial investment and electrical costs as a function&#xd;
of tunnel length (L) and daily traffic volume (N) for the four control strategies. The analysis was&#xd;
performed using 100-day data collected in eleven Chinese tunnels. The tunnel length (L) ranged from&#xd;
600 m to 3300 m and the daily traffic volume (N) ranged from 700 to 2500. The results showed that&#xd;
initial investment costs increase with L for all control strategies. Also, the electricity costs for the LCL,&#xd;
TSCS, and DACS strategies increased linearly with L, whereas the electricity cost for the ICS strategy&#xd;
has an exponential growth with L and N. The results showed that for a lifetime equal to or shorter&#xd;
than 218 days, the LCL strategy offered the best economical solution; whereas for a lifetime longer&#xd;
than 955 days, the ICS strategy offered the best economical solution. For a lifetime between 218 and&#xd;
955 days, the most suitable strategy varies with tunnel length and traffic volume. This study’s results&#xd;
can guide the decision-making process during the tunnel lighting system’s design stage.</dc:description>
      <dc:date>2021-07-14T08:19:46Z</dc:date>
      <dc:date>2021-07-14T08:19:46Z</dc:date>
      <dc:date>2021</dc:date>
      <dc:type>info:eu-repo/semantics/article</dc:type>
      <dc:identifier>Qin, L.; Peña-García, A.; Leon, A.S.; Yu, J.-C. Comparative Study of Energy Savings for Various Control Strategies in the Tunnel Lighting System. Appl. Sci. 2021, 11, 6372. https://doi.org/10.3390/ app11146372</dc:identifier>
      <dc:identifier>http://hdl.handle.net/10481/69680</dc:identifier>
      <dc:identifier>10.3390/app11146372</dc:identifier>
      <dc:language>eng</dc:language>
      <dc:rights>http://creativecommons.org/licenses/by/3.0/es/</dc:rights>
      <dc:rights>info:eu-repo/semantics/openAccess</dc:rights>
      <dc:rights>Atribución 3.0 España</dc:rights>
      <dc:publisher>MDPI</dc:publisher>
   </ow:Publication>
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